1. Wednesday, October 10
Ford: Chs 1-3

2. YouTube

4. Agenda Announce: Ch. 1 Ch. 2 Ch. 3 More Project Ideas:
Quantum Computers
Quantum Imaging
Photonics
Read Chs. 4 & 5 for next time
Pass back and discuss tests
Ch. 1
Ch. 2
Ch. 3

5. Ch. 1 Atoms mostly empty space (e.g. propeller)
Atoms very big compared to subatomic world
Existence of atoms still in doubt in early 1900s
Some particles: electron, proton, photon
Standard Model: quarks, Higgs, leptons, force carriers
Classical determinism vs quantum probabilities

6. Ch. 2—Small/Fast Scientific Notation (of necessity)
Range of units (eV, angstroms, etc)
Physical Constants (h, hbar, c)
What does it mean to be quantized?
Charge:
Fundamental (property & force)
We’re not sure why it’s quantized
Holds electrons in atom
Balances strong force (gluons) inside nucleus
Spin
A measure of angular momentum (different than orbital)
Fundamental property of particles (half-integer, and integer)
quantized

8. Structure of Fe-8 molecular nanomagnets and SQUID high-frequency EPR spectra of Fe-8 showing resonant absorption corresponding to transitions between the quantized energy levels.
From:

12. Ch. 3—The Leptons
Antiparticles/antimatter—particles identical to their partners except the opposite charge (same mass and spin)
Electron (1897 JJ Thompson)
First fundamental particle discovered
Basis of all electronics (but for how much longer?)
Negative charge, 1/2000 mass of proton
Radioactivity
Probabilistic radiation/decay
Alpha particles—helium nucleus
Beta particles—electron (and anti neutrino)
Gamma –high energy photon

13. Neutrinos Leptons 3 flavors Only weakly interacting—no charge
Hard to detect
Very little masses

14. Muon Tau 200x more massive than electron
Otherwise very similar to electron
Decays
Tau
Very massive (more than proton)
Same charge as muon and electron